Harrow.



PATENTED-FBB. 25, 1908.

No'. s802301.

P. W. HARRISON.

HARRUW.

APPLICATION FILED JUNI: 26,1907.

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abmnug FRANK W. HARRISON, OF MORRISN, TENNESSEE.'

HARROW.

Specicaton of Letters Patent.

Patented Feb. 25, 1908.

Application tiled June Z6. 1907. Serial No. 380.951.

To all whom 'it may con-cern:A Y

Be it known'that I, FRANK. W. HARRISON, a citizen of the United States of America, residing at Morrison, in the county of `Warren and State of Tennessee, have invented new and useful Improvements in Harrows, of which the following is a specification.

This invention is an improved ilexible harrow in which the bars are flexibly connected together for movement independently of one another, and in which a harrow is provided with impro ved means for adjusting such bars and the teeth carried thereby, to set the teeth at any desired angle and cause theV teeth to workin the soil at such angle, and the said invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

Figure 1 is a top plan view of a harrow constructed in accordance with my invention. Fig. 2 is a vertical longitudinal sectional view of the same. of the same. Fig. 4 is a detail sectional view of the same taken on the plane indicated by the line a-'a of Fig. 3.

In accordance with my invention I provide in connection vwith the beams 1 of a harrow, flexible means, such as chains 2, to connect such harrow beams together so that the harrow beams may move independently of o'ne another when passing over stones, stumps, roots or other obstructions and so that the harrow beams may be set at any desired inclination to cause the teeth 3 which" they carry to operate at such adjustment.

I here show only a single harrow section for the purpose of this specification. It will be understood, however, that my invention is applicable to harrows having a plurality of sections, and it will also be understood that the harrow or each section thereof may have any suitable number of the beams.

The chains 2 are preferably in short lengths corresponding to the desired spaces between the .harrow beams, and they may be hooked or otherwise detachably secured to the harrow beams so that the latter may be disconnected from one another so that any desired number of the harrow beams may be used.

A draft chain 4 is shown connected to the front barrow beam. vEach of the harrow beams is provided, preferably, at or near its center with an upwardly extending arm or standard 5.

Fig. 3 is a detail rear elevation i The said arms or standards are! connected by a chain or chains 6, which are Ashown as secured to the upper ends thereof so lthat the said arms or standards, together 1 with the several harrow beamsto which they I areisecured will move in unison angularly when an)v one of them is thus moved. Each ofthe said arms or standards is made of angle "metal, providing a front web 13 and a side web 1-1. -Such side web is shorter than such front web so that the upper end of the front 'web projects above such side web to form a front web also projects below such side web to form a dowmvardly extending portion 16 which bears against the front side of the beam and is bolted thereto, theV lower ends of the said web forming a shoulder 17 which bears on the upper side of the beam.

An adjusting lever T has its lower end bolted, as at 1S, to the side web of the arm 5 on the rear harrow beam 1, and such lever has its lower portion bent obliquely, as at 19, with reference to such arm and is then extended vertically to form a space between such lever and such arm. A bolt 2O extends across such space and connects such lever to the side web of such arm. Y l An adjusting and locking rod 9 has its front end pivotally connected, as at 10, to

l center thereof. Such adjusting and locking rod is provided at its rear end with a handle 11. adapted to be conveniently grasped, and such rod is provided on one side near its rear end with rack teeth 12 to enable such rod to be engaged at any desired longitudinal adjustment with the said bolt 2O which connects the adjusting lever 7 with the verticaal arm or standard 5 ofthe rear harrow beam.

gaging the adjusting and locking rod from the adjusting lever and by then manipulating Ysuch rod and lever, the harrow beams tal plane or to assume any desired lateral inclination, and hence cause the teeth thereof to be also so adjusted. yBy rengaging the rod with the said lever the bars of the harroW may be locked at such adjustment.

A harroW thus constructed is exceedingly strong and durable, is very light and flexible, may be adjusted to cause its teeth to operate in the soil at any desired angle, and since` its bars are capable of moving independently of one another, such harrow is adapted to move without injury to itself over obstructions in the field when at Work. Furthermore, by

lug 15 for 4attachment of th'e chain, and such It will be understood that by first disen-l may be adjusted to lie in a common horiZonthe front beam of the barrow, near or at the i rackV portion of such adjusting and locking Cfrv reason of the iiexibility of the liarrow the same accommodates itself to inequalities in the surface of the soil and performs its work more efficiently thands possible by liarrows in which the beams are not capable of movement independently ofone another.

Having thus described the invention, what is claimed as new, isz- 1. A harrow comprising bars having upwardly extending arms, each formed of angle .metal providing a front web, a side web, the

latter bearing onthe bars and the front webs having downwardly extending portions Asecured to the front sides of said bars so that said side Webs brace said angle metal arms,

an adjusting lever also attached to one of said bars, means connecting such bars for angular adjustment, andan adjusting rod connected to one of such bars, such rod and such lever having coacting means to Vconnect 'such rod to such lever at any desired longitudinal adjustment of such rod, for the purpose set forth.

2. A barrow comprising bars having up- 'ardly eXtendinG arms, one of such bars being also provi ed with an upwardly extending adjustin lever spaced from the arms lever at any desired longitudinal adjustment of such rod, for the purpose set forth.

In testimony whereof, Iv aliix my signature in presence of two witnesses.

FRANK W. HARRISON. VV-itnesses:

lV. R. STROUD, R. T. DARMELL. 

